BYD is one of the largest new energy vehicle companies in China.Analyzing its scenario and the factors that affect its value helps to understand and identify development opportunities and potential problems.On one han...BYD is one of the largest new energy vehicle companies in China.Analyzing its scenario and the factors that affect its value helps to understand and identify development opportunities and potential problems.On one hand,this paper makes a qualitative analysis of BYD,using SWOT model to study the internal capability and external environment of BYD.On the other hand,the multiple regression model is used for quantitative analysis of BYD’s enterprise value,and the model is established based on three factors:enterprise fundamentals,investor behavior and psychology,and macroeconomic policy uncertainty,and the stepwise regression is carried out.The results show that the increase of institutional investors’shareholding ratio,the increase of investor sentiment index,and the increase of M2 growth rate will increase the overall enterprise value,while the increase of economic policy uncertainty will decrease the enterprise value.展开更多
Fuzzy Shapley values are developed based on classical Shapley values and used to allocate profit among partners in virtual enterprises (VE). Axioms of the classical Shapley value are extended to Shapley values with ...Fuzzy Shapley values are developed based on classical Shapley values and used to allocate profit among partners in virtual enterprises (VE). Axioms of the classical Shapley value are extended to Shapley values with fuzzy payoffs by using fuzzy sets theory. Fuzzy Shapley function is defined based on these extended axioms. From the viewpoint the allocation for each partner should be a crisp value rather a fuzzy membership function at the end of cooperation, a crisp allocation scheme based on fuzzy Shapley values is proposed.展开更多
From the perspective of strategy,this paper uses A-share agricultural listed companies( 2011-2016) as samples to study the impact of strategic deviance on enterprise value,to explore whether customer concentration pla...From the perspective of strategy,this paper uses A-share agricultural listed companies( 2011-2016) as samples to study the impact of strategic deviance on enterprise value,to explore whether customer concentration plays a mediating effect. The results show that customer concentration plays a mediating effect in the relationship between strategic deviance and enterprise value. The strategic deviance is positively correlated with customer concentration and negatively correlated with enterprise value. The management of agricultural enterprises must pay attention to the customer relationship problems caused by strategic deviance,reduce the risk of enterprises,and gradually enhance the value of enterprises.展开更多
High-tech industry has become the strategic and leading industry of the national economic and social development, and it is also the main driving force for economic growth and social progress in China. It is necessary...High-tech industry has become the strategic and leading industry of the national economic and social development, and it is also the main driving force for economic growth and social progress in China. It is necessary to redefine the composition of high-tech enterprises'value and thus find the ways to maximize their value. This paper attempted to address the following set of questions: 1. What are the value drivers and how do they affect high-tech enterprises'value? 2. How to establish the value appraisal measure system of high-tech enterprise?展开更多
In April,the actual value added of the industrial enterprises above designated size increased by 3.9%yearon-year(the growth rate of the following value added is the actual growth rate after deducting price factors),an...In April,the actual value added of the industrial enterprises above designated size increased by 3.9%yearon-year(the growth rate of the following value added is the actual growth rate after deducting price factors),and it decreased by 1.1%last month.展开更多
The manufacturing industry is an important pillar of the national economy.It is of vital importance to develop statistical modellings in order to quantify the relationship between potential internal drivers and the tr...The manufacturing industry is an important pillar of the national economy.It is of vital importance to develop statistical modellings in order to quantify the relationship between potential internal drivers and the trend of output values in the manufacturing industry.However,only a few statistical modellings have been established to investigate such associations.This study developed the correlation coefficient model and generalized linear model(GLM)to measure the single and interactive effects of the internal drivers on the changes of the output values.For the GLM,different predictive variables were developed to fit into the dataset,and the performance of the models were compared using fitness parameters.Furthermore,an industry survey dataset for 1,180 manufacturing enterprises in 2020 was used to validate the models.The use of the GLM combining land area,number of employees,scientific research input,and labor productivity may have a great potential to bolster capacity in monitoring and predicting the trend of output values in the manufacture industry.展开更多
The shell color of Pacific oyster(Crassostrea gigas) is a desirable trait; but the nutritional studies on C. gigas with different shell colors have not been conducted. Through successive selective breeding, five shell...The shell color of Pacific oyster(Crassostrea gigas) is a desirable trait; but the nutritional studies on C. gigas with different shell colors have not been conducted. Through successive selective breeding, five shell color strains of black(B), purple(P), orange(O), golden(G) and white(W) C. gigas have been developed. The aim of this study was to evaluate the chemical composition and nutritional value of five shell color strains and one commercial population with a common color. The biochemical composition including moisture, total protein, glycogen, ash, total fat, fatty acids(FA), amino acids and minerals was detected. The results indicated that the protein(50.76%–56.57%) was the major component. The content of glycogen showed a significant difference between orange shell and golden shell strains, as well as between commercial population and golden shell strain. In addition, all shell color strains contained a large amount of essential amino acids(12.20–14.15 g(100 g)^(-1)), of them leucine(2.81–3.29 g(100 g)^(-1)) and lysine(2.79–3.28 g(100 g)^(-1)) were predominant. The oysters were rich in polyunsaturated fatty acids(42.26%–45.24% of total fatty acid) with high levels of DHA(18.53%–21.16% of total fatty acid) and EPA(17.23%–18.68% of total fatty acid). Significant differences of mineral contents(Mg, Zn, Fe and Cu) were identified among the six populations. These results indicated that C. gigas with different shell colors presented rich nutritional value with high protein, glycogen, essential amino acids and polyunsaturated fatty acids. The biochemical composition obtained in this study is useful for selective breeding of C. gigas with different shell colors.展开更多
In order to verify the possible use of ramie as feed for ruminants, a study was undertaken on the chemical and nutritional evaluation of different parts of this plant. Four stocks of samples picked up in two different...In order to verify the possible use of ramie as feed for ruminants, a study was undertaken on the chemical and nutritional evaluation of different parts of this plant. Four stocks of samples picked up in two different periods (summer and autumn) were analyzed. The standard chemical composition was determined on the whole plant and on its parts, the study was particularly focused on leaves and tops, not used in fibre production and available as livestock feed. Organic matter enzymic digestibility (OMD) was determined on all the samples by a double step method based on cellnlolytic andproteolytic enzymes. The chemical analysis showed good crude proteins content in leaves, tops and whole plant: 17.00 ~ 1.52%, 15.25 ~ 0.77% and 11.79 ~ 3.32% on dry matter (DM) basis respectively and good acid (ADF) and neutral (NDF) detergent fibre fractions. Lignin and ash resulted high in all plant parts and organic matter (OM) was consequently low, ash analysis showed high calcium concentration, especially in leaves, with values exceeding 4% of din, whereas the other micro (except the lead) and macroelements were in a normal range. OMD and energy values resulted poor in leaves, tops and in the whole plant and lower than the other forages commonly used as feed for runninants, thus the utilisation of ramie plant and its by-products requests further investigations.展开更多
Unlike prior research that shows climate policy improves enterprise value,this study reveals the negative im‐pact of emission trading schemes(ETSs)on enterprise value under China’s unique institutional backdrop and ...Unlike prior research that shows climate policy improves enterprise value,this study reveals the negative im‐pact of emission trading schemes(ETSs)on enterprise value under China’s unique institutional backdrop and identifies the mechanism through which this impact occurs.Data from a sample of 1267 listed companies in the Chinese stock market from 2005 to 2018 models are analyzed using difference-in-differences(DID)and propensity score matching methods(PSM).The results suggest that ETSs have an average short-term negative impact on enterprise value,which peaks in the second year of the ETS and diminishes from the fourth year.Further analysis reveals that ETSs did not cause significant operating losses for firms but reduced their value through the market response mechanism.ETS enterprises experienced significant declines in their annual stock transaction amounts and in returns on individual shares.This indicates that investors expect ETSs to ad‐versely affect pilot enterprises and accordingly adopt disinvestment strategies.Despite the short-term negative effect,ETSs effectively encourage enterprises to innovate green technologies to mitigate long-term carbon risk.展开更多
Let φ and ψ be linear fractional self\|maps of the unit disk D and X a separable Hilbert space. In this paper we completely characterize the weak compactness of the product operators of a composition operation C φ...Let φ and ψ be linear fractional self\|maps of the unit disk D and X a separable Hilbert space. In this paper we completely characterize the weak compactness of the product operators of a composition operation C φ with another one's adjoint C * ψ on the vector\|valued Bergman space B 1(X) for forms C φC * ψ and C * ψC φ.展开更多
Multiple value structure of religious cultural landscape resources influences and determines development and regulation of cultural landscape resources. In the multiple value structure consisting of cultural inheritan...Multiple value structure of religious cultural landscape resources influences and determines development and regulation of cultural landscape resources. In the multiple value structure consisting of cultural inheritance, spiritual needs, industrial expansion, leisure and entertainment, development and utilization of religious cultural landscape resources should adhere to scientific classification, relatively independent policy orientation, make and implement specific countermeasures, so as to meet various requirements of the public and other relevant subjects using more refined and improved policy measures, and to realize the optimal utilization and comprehensive value of religious cultural landscapes.展开更多
Value is the internal driving force for any corporate to obtain profits. The key issue of making profit lies on whether the corporate can truly appreciate the needs and combination of stakeholders' value, and establi...Value is the internal driving force for any corporate to obtain profits. The key issue of making profit lies on whether the corporate can truly appreciate the needs and combination of stakeholders' value, and establish a successful management of value exchange system. This paper starts with the theories of the employee and customer value measurement and management, followed by the value exchange system of employee-customer-organization. Therefore, it explains the status and role of employee-customer-organization in terms of value exchange. This work concludes that customers' satisfaction is determined by employees' satisfaction, and on that basis, customers would provide the promoted value to the organization.展开更多
Based on the intersection point rule of the retention value and normal boiling point of homologues in reversed-phase high-performance liquid chromatography(RPLC), the intersection point rule of the retention value of ...Based on the intersection point rule of the retention value and normal boiling point of homologues in reversed-phase high-performance liquid chromatography(RPLC), the intersection point rule of the retention value of homologues and mobile phase composition has been derived, and was testified by a lot of experimental data from the literature. With this newly proposed equation, we can use the retention value of the compound in one mobile phase composition to predict its retention value in any other mobile phase composition. For fourteen groups of homologues in five mobile phase compositions on five Kinds of columns, the overall average absolute error of 721 data sets is 2.8%.展开更多
The metal and nano-ceramic composite coatings were formed on gray cast iron surface by electrodepositon method.The Ni-Co was used as metal matrix,and the nano-Al2O3 was chosen as second-phase particulates.The gradient...The metal and nano-ceramic composite coatings were formed on gray cast iron surface by electrodepositon method.The Ni-Co was used as metal matrix,and the nano-Al2O3 was chosen as second-phase particulates.The gradient structure of biology material was the model to avoid bad interface bonding and stress distribution,therefore the gradient composite coating was prepared.The morphology of composite coatings was flatter and the microstructure was more com-pact than the pure Ni-Co coatings.Effect of pH value on surface morphology was analyzed,which some microcracks appeared when pH value was greater than 5.The content of codeposition na-no-Al2O3 reached a maximum value at pH value of 3-4,at the same time the properties including mi-crohardness and wear-resistance were analyzed.The result indicated that the mirohardness reached a maximum value and the wear loss volume was less at pH value 3-4.展开更多
With the analysis of the influence of regional culture on the value of tourism creative products,the characteristics of the value of tourism creative products were studied,and the impact of regional culture on the com...With the analysis of the influence of regional culture on the value of tourism creative products,the characteristics of the value of tourism creative products were studied,and the impact of regional culture on the composition and realization of the value was summarized. Thus, the general law of the influence of external factors on the product value could be drawn. Characteristics of the value of tourism creative products is contrasted to analyze the requirement motivation of consumers and to seek the ways of realization for products value with the influence of regional culture.The mathematical evaluation model was employed for evidence.Based on the model,the influencing factors of the value of different types of creative products were explored, which would provide theories and enlightenment for the co-creation and appreciation of creative products in the future.展开更多
This study was carried out to determine the chemical composition and in situ degradability of agro-industrial by-products found in Eritrea. Three categories of by-products were evaluated and were the milling industry ...This study was carried out to determine the chemical composition and in situ degradability of agro-industrial by-products found in Eritrea. Three categories of by-products were evaluated and were the milling industry (wheat bran;WB, short;WS, and middling;WM), brewery (brewers’ dry grain;BDG, hops;BDH, and yeast;BDY) and sesame cakes (sesame cake machine extracted;SCM and manually extracted;SCT). The dry matter (DM) varied between 88.46% in BDY to 92.39% in SCT. The lowest (P < 0.05) crude protein (CP) content was recorded in WM at 10.11% while the highest was from the BDY at 48.20%. The metabolisable energy (ME) value of the agro-industrial by-products ranged from 8.72 to 11.18 MJ per kg DM with the BDH recording the lowest value (P The sesame cakes (SCM and SCT) recorded higher values of 11.17 and 11.18 MJ per kg DM respectively. The SCT recorded the highest ash content at 10.93% followed by BDY at 10.16% with the least being obtained from WM at 2.48%. The ether extract and acid detergent lignin contents were generally low in all cases for all the by-products. Generally, the results indicated that there was no clear pattern in terms of nutrients content amongst the by-products. The in situ DM, organic matter (OM) and CP degradability differed amongst and within the sesame cakes, milling and brewery by-products. The wide variation in chemical composition, DM, OM, CP degradability, and ME obtained from this study offer farmers huge flexibility in formulating rations according to the productive performance of target animals.展开更多
The fracture toughness (KIC) values determined by indentation microfracture method (IM ) for SiC whisker reinforced Al2O3 and ZrO2 based composites were calculated with different IM equations and compared with those o...The fracture toughness (KIC) values determined by indentation microfracture method (IM ) for SiC whisker reinforced Al2O3 and ZrO2 based composites were calculated with different IM equations and compared with those obtained by singte edge notched beam (SENB) technique. Experimental results show that the KIC (IM) values calculated with different equations are quite different one from another. For composites without phase transformable components the KIC (IM) and KIC (SENB) values are practically on the same level, but for composites with phase transformable components (partially stabilized zirconia) the KIC (SENB) values are always higher than KIC (IM). This is because that the IM method can not reveal sensitively the toughening effect due to dynamic t-m transformation of ZrO2 as the SENB method does. The accuracy of the IM method depends on the Suitability of the IM equations and was evaluated for the materials used in this investigation. Two new IM equations are suggested with which the KIC (IM ) values can be obtained very close to KIC (SENB) values for composites having phase transformable components.展开更多
In the development of modern enterprises,the management mode is the main factor that determines the height of its development,so it is highly valued.The traditional management mode has many disadvantages,which can not...In the development of modern enterprises,the management mode is the main factor that determines the height of its development,so it is highly valued.The traditional management mode has many disadvantages,which can not comply with the development trend of the current market economy,which leads to the slow improvement of enterprise management level,which is not conducive to the operation and development of enterprises.The proposal of the concept of value-oriented enterprise management has become a new mode of enterprise management,which is helpful to speed up the reform process of enterprises and enhance their development vitality.Therefore,we should clarify the key points of the construction of the model and gradually improve the level of management.This paper analyzes the concept of value enterprise management,puts forward the application status and classification of value enterprise management model,and explores the construction strategy of value enterprise management model.展开更多
Among the existing researches on brand value,few of them focused on the demands of the companies in the clothing industry to brand value. There were three innovation points as follows: first of all,two key demands of ...Among the existing researches on brand value,few of them focused on the demands of the companies in the clothing industry to brand value. There were three innovation points as follows: first of all,two key demands of apparel companies to existing brand value were summarized through investigation; then,the concept of rapid brand value evaluation and multi-dimensional factors( MDFs) was presented; finally,the relationship between apparel corporate brand value and the sales revenue in apparel market with the sales revenue was proven by empirical research.During the process of empirical study,the sales revenue data of 66 apparel enterprises domestic and abroad were collected,and the regression analysis has been done on the relationship between the corporate brand value and the apparel market sales revenue of apparel enterprise. The empirical research showed that they were positively correlated to each other. This conclusion presented a method of judging brand value development trend quickly by single indicator.展开更多
文摘BYD is one of the largest new energy vehicle companies in China.Analyzing its scenario and the factors that affect its value helps to understand and identify development opportunities and potential problems.On one hand,this paper makes a qualitative analysis of BYD,using SWOT model to study the internal capability and external environment of BYD.On the other hand,the multiple regression model is used for quantitative analysis of BYD’s enterprise value,and the model is established based on three factors:enterprise fundamentals,investor behavior and psychology,and macroeconomic policy uncertainty,and the stepwise regression is carried out.The results show that the increase of institutional investors’shareholding ratio,the increase of investor sentiment index,and the increase of M2 growth rate will increase the overall enterprise value,while the increase of economic policy uncertainty will decrease the enterprise value.
基金the National Natural Science Foundation of China (70471063 , 70171036)the Second Phase of "985"Project of China(107008200400024) the Main/Subject Project of Beijing of China(XK100070534)
文摘Fuzzy Shapley values are developed based on classical Shapley values and used to allocate profit among partners in virtual enterprises (VE). Axioms of the classical Shapley value are extended to Shapley values with fuzzy payoffs by using fuzzy sets theory. Fuzzy Shapley function is defined based on these extended axioms. From the viewpoint the allocation for each partner should be a crisp value rather a fuzzy membership function at the end of cooperation, a crisp allocation scheme based on fuzzy Shapley values is proposed.
文摘From the perspective of strategy,this paper uses A-share agricultural listed companies( 2011-2016) as samples to study the impact of strategic deviance on enterprise value,to explore whether customer concentration plays a mediating effect. The results show that customer concentration plays a mediating effect in the relationship between strategic deviance and enterprise value. The strategic deviance is positively correlated with customer concentration and negatively correlated with enterprise value. The management of agricultural enterprises must pay attention to the customer relationship problems caused by strategic deviance,reduce the risk of enterprises,and gradually enhance the value of enterprises.
文摘High-tech industry has become the strategic and leading industry of the national economic and social development, and it is also the main driving force for economic growth and social progress in China. It is necessary to redefine the composition of high-tech enterprises'value and thus find the ways to maximize their value. This paper attempted to address the following set of questions: 1. What are the value drivers and how do they affect high-tech enterprises'value? 2. How to establish the value appraisal measure system of high-tech enterprise?
文摘In April,the actual value added of the industrial enterprises above designated size increased by 3.9%yearon-year(the growth rate of the following value added is the actual growth rate after deducting price factors),and it decreased by 1.1%last month.
文摘The manufacturing industry is an important pillar of the national economy.It is of vital importance to develop statistical modellings in order to quantify the relationship between potential internal drivers and the trend of output values in the manufacturing industry.However,only a few statistical modellings have been established to investigate such associations.This study developed the correlation coefficient model and generalized linear model(GLM)to measure the single and interactive effects of the internal drivers on the changes of the output values.For the GLM,different predictive variables were developed to fit into the dataset,and the performance of the models were compared using fitness parameters.Furthermore,an industry survey dataset for 1,180 manufacturing enterprises in 2020 was used to validate the models.The use of the GLM combining land area,number of employees,scientific research input,and labor productivity may have a great potential to bolster capacity in monitoring and predicting the trend of output values in the manufacture industry.
基金supported by the grants from the National Natural Science Foundation of China(No.31772843)the Key Research and Development Program of Shandong Province(No.2016ZDJS06A06)the Industrial Development Project of Qingdao City(17-3-3-64-nsh)
文摘The shell color of Pacific oyster(Crassostrea gigas) is a desirable trait; but the nutritional studies on C. gigas with different shell colors have not been conducted. Through successive selective breeding, five shell color strains of black(B), purple(P), orange(O), golden(G) and white(W) C. gigas have been developed. The aim of this study was to evaluate the chemical composition and nutritional value of five shell color strains and one commercial population with a common color. The biochemical composition including moisture, total protein, glycogen, ash, total fat, fatty acids(FA), amino acids and minerals was detected. The results indicated that the protein(50.76%–56.57%) was the major component. The content of glycogen showed a significant difference between orange shell and golden shell strains, as well as between commercial population and golden shell strain. In addition, all shell color strains contained a large amount of essential amino acids(12.20–14.15 g(100 g)^(-1)), of them leucine(2.81–3.29 g(100 g)^(-1)) and lysine(2.79–3.28 g(100 g)^(-1)) were predominant. The oysters were rich in polyunsaturated fatty acids(42.26%–45.24% of total fatty acid) with high levels of DHA(18.53%–21.16% of total fatty acid) and EPA(17.23%–18.68% of total fatty acid). Significant differences of mineral contents(Mg, Zn, Fe and Cu) were identified among the six populations. These results indicated that C. gigas with different shell colors presented rich nutritional value with high protein, glycogen, essential amino acids and polyunsaturated fatty acids. The biochemical composition obtained in this study is useful for selective breeding of C. gigas with different shell colors.
文摘In order to verify the possible use of ramie as feed for ruminants, a study was undertaken on the chemical and nutritional evaluation of different parts of this plant. Four stocks of samples picked up in two different periods (summer and autumn) were analyzed. The standard chemical composition was determined on the whole plant and on its parts, the study was particularly focused on leaves and tops, not used in fibre production and available as livestock feed. Organic matter enzymic digestibility (OMD) was determined on all the samples by a double step method based on cellnlolytic andproteolytic enzymes. The chemical analysis showed good crude proteins content in leaves, tops and whole plant: 17.00 ~ 1.52%, 15.25 ~ 0.77% and 11.79 ~ 3.32% on dry matter (DM) basis respectively and good acid (ADF) and neutral (NDF) detergent fibre fractions. Lignin and ash resulted high in all plant parts and organic matter (OM) was consequently low, ash analysis showed high calcium concentration, especially in leaves, with values exceeding 4% of din, whereas the other micro (except the lead) and macroelements were in a normal range. OMD and energy values resulted poor in leaves, tops and in the whole plant and lower than the other forages commonly used as feed for runninants, thus the utilisation of ramie plant and its by-products requests further investigations.
文摘Unlike prior research that shows climate policy improves enterprise value,this study reveals the negative im‐pact of emission trading schemes(ETSs)on enterprise value under China’s unique institutional backdrop and identifies the mechanism through which this impact occurs.Data from a sample of 1267 listed companies in the Chinese stock market from 2005 to 2018 models are analyzed using difference-in-differences(DID)and propensity score matching methods(PSM).The results suggest that ETSs have an average short-term negative impact on enterprise value,which peaks in the second year of the ETS and diminishes from the fourth year.Further analysis reveals that ETSs did not cause significant operating losses for firms but reduced their value through the market response mechanism.ETS enterprises experienced significant declines in their annual stock transaction amounts and in returns on individual shares.This indicates that investors expect ETSs to ad‐versely affect pilot enterprises and accordingly adopt disinvestment strategies.Despite the short-term negative effect,ETSs effectively encourage enterprises to innovate green technologies to mitigate long-term carbon risk.
文摘Let φ and ψ be linear fractional self\|maps of the unit disk D and X a separable Hilbert space. In this paper we completely characterize the weak compactness of the product operators of a composition operation C φ with another one's adjoint C * ψ on the vector\|valued Bergman space B 1(X) for forms C φC * ψ and C * ψC φ.
基金Sponsored by Interdisciplinary Research Team of Culture,Sociology and Economics of Henan Provincial Department of Science and Technology(B20140539)
文摘Multiple value structure of religious cultural landscape resources influences and determines development and regulation of cultural landscape resources. In the multiple value structure consisting of cultural inheritance, spiritual needs, industrial expansion, leisure and entertainment, development and utilization of religious cultural landscape resources should adhere to scientific classification, relatively independent policy orientation, make and implement specific countermeasures, so as to meet various requirements of the public and other relevant subjects using more refined and improved policy measures, and to realize the optimal utilization and comprehensive value of religious cultural landscapes.
文摘Value is the internal driving force for any corporate to obtain profits. The key issue of making profit lies on whether the corporate can truly appreciate the needs and combination of stakeholders' value, and establish a successful management of value exchange system. This paper starts with the theories of the employee and customer value measurement and management, followed by the value exchange system of employee-customer-organization. Therefore, it explains the status and role of employee-customer-organization in terms of value exchange. This work concludes that customers' satisfaction is determined by employees' satisfaction, and on that basis, customers would provide the promoted value to the organization.
文摘Based on the intersection point rule of the retention value and normal boiling point of homologues in reversed-phase high-performance liquid chromatography(RPLC), the intersection point rule of the retention value of homologues and mobile phase composition has been derived, and was testified by a lot of experimental data from the literature. With this newly proposed equation, we can use the retention value of the compound in one mobile phase composition to predict its retention value in any other mobile phase composition. For fourteen groups of homologues in five mobile phase compositions on five Kinds of columns, the overall average absolute error of 721 data sets is 2.8%.
基金Funded by the National Natural Science Foundation of China(No.50635030)the National Basic Research of China (No.2007CB616913)
文摘The metal and nano-ceramic composite coatings were formed on gray cast iron surface by electrodepositon method.The Ni-Co was used as metal matrix,and the nano-Al2O3 was chosen as second-phase particulates.The gradient structure of biology material was the model to avoid bad interface bonding and stress distribution,therefore the gradient composite coating was prepared.The morphology of composite coatings was flatter and the microstructure was more com-pact than the pure Ni-Co coatings.Effect of pH value on surface morphology was analyzed,which some microcracks appeared when pH value was greater than 5.The content of codeposition na-no-Al2O3 reached a maximum value at pH value of 3-4,at the same time the properties including mi-crohardness and wear-resistance were analyzed.The result indicated that the mirohardness reached a maximum value and the wear loss volume was less at pH value 3-4.
基金the Fundamental Research Funds for the Central Universities,China(No.16D110701)National Natural Science Foundation of China(No.71303248)
文摘With the analysis of the influence of regional culture on the value of tourism creative products,the characteristics of the value of tourism creative products were studied,and the impact of regional culture on the composition and realization of the value was summarized. Thus, the general law of the influence of external factors on the product value could be drawn. Characteristics of the value of tourism creative products is contrasted to analyze the requirement motivation of consumers and to seek the ways of realization for products value with the influence of regional culture.The mathematical evaluation model was employed for evidence.Based on the model,the influencing factors of the value of different types of creative products were explored, which would provide theories and enlightenment for the co-creation and appreciation of creative products in the future.
文摘This study was carried out to determine the chemical composition and in situ degradability of agro-industrial by-products found in Eritrea. Three categories of by-products were evaluated and were the milling industry (wheat bran;WB, short;WS, and middling;WM), brewery (brewers’ dry grain;BDG, hops;BDH, and yeast;BDY) and sesame cakes (sesame cake machine extracted;SCM and manually extracted;SCT). The dry matter (DM) varied between 88.46% in BDY to 92.39% in SCT. The lowest (P < 0.05) crude protein (CP) content was recorded in WM at 10.11% while the highest was from the BDY at 48.20%. The metabolisable energy (ME) value of the agro-industrial by-products ranged from 8.72 to 11.18 MJ per kg DM with the BDH recording the lowest value (P The sesame cakes (SCM and SCT) recorded higher values of 11.17 and 11.18 MJ per kg DM respectively. The SCT recorded the highest ash content at 10.93% followed by BDY at 10.16% with the least being obtained from WM at 2.48%. The ether extract and acid detergent lignin contents were generally low in all cases for all the by-products. Generally, the results indicated that there was no clear pattern in terms of nutrients content amongst the by-products. The in situ DM, organic matter (OM) and CP degradability differed amongst and within the sesame cakes, milling and brewery by-products. The wide variation in chemical composition, DM, OM, CP degradability, and ME obtained from this study offer farmers huge flexibility in formulating rations according to the productive performance of target animals.
文摘The fracture toughness (KIC) values determined by indentation microfracture method (IM ) for SiC whisker reinforced Al2O3 and ZrO2 based composites were calculated with different IM equations and compared with those obtained by singte edge notched beam (SENB) technique. Experimental results show that the KIC (IM) values calculated with different equations are quite different one from another. For composites without phase transformable components the KIC (IM) and KIC (SENB) values are practically on the same level, but for composites with phase transformable components (partially stabilized zirconia) the KIC (SENB) values are always higher than KIC (IM). This is because that the IM method can not reveal sensitively the toughening effect due to dynamic t-m transformation of ZrO2 as the SENB method does. The accuracy of the IM method depends on the Suitability of the IM equations and was evaluated for the materials used in this investigation. Two new IM equations are suggested with which the KIC (IM ) values can be obtained very close to KIC (SENB) values for composites having phase transformable components.
文摘In the development of modern enterprises,the management mode is the main factor that determines the height of its development,so it is highly valued.The traditional management mode has many disadvantages,which can not comply with the development trend of the current market economy,which leads to the slow improvement of enterprise management level,which is not conducive to the operation and development of enterprises.The proposal of the concept of value-oriented enterprise management has become a new mode of enterprise management,which is helpful to speed up the reform process of enterprises and enhance their development vitality.Therefore,we should clarify the key points of the construction of the model and gradually improve the level of management.This paper analyzes the concept of value enterprise management,puts forward the application status and classification of value enterprise management model,and explores the construction strategy of value enterprise management model.
基金Shanghai Style Fashion Design&Value Creation Knowledge Service Center,China(No.ZX201311000031)Shanghai Style Fashion Trend Research Based on Knowledge Management of the Fundamental Research Funds for the Central Universities,China(No.15D110719)Shanghai Style Fashion Trend Research Based on Cloud Computing of the Fundamental Research Funds for the Central Universities,China(No.15D11073)
文摘Among the existing researches on brand value,few of them focused on the demands of the companies in the clothing industry to brand value. There were three innovation points as follows: first of all,two key demands of apparel companies to existing brand value were summarized through investigation; then,the concept of rapid brand value evaluation and multi-dimensional factors( MDFs) was presented; finally,the relationship between apparel corporate brand value and the sales revenue in apparel market with the sales revenue was proven by empirical research.During the process of empirical study,the sales revenue data of 66 apparel enterprises domestic and abroad were collected,and the regression analysis has been done on the relationship between the corporate brand value and the apparel market sales revenue of apparel enterprise. The empirical research showed that they were positively correlated to each other. This conclusion presented a method of judging brand value development trend quickly by single indicator.